Royale spellbook as of episode 5

Here's my notes on what spells are confirmed to be in play, plus some speculation on unconfirmed spells.

Known by surviving wizards

Absolute Zero: Ice Knife
Dapper gentleman (name unknown): Time Stop
Grakan: Catapult
"Hasty" Jane Jennings: Expeditious Retreat
Helgrammit: Alarm, Infestation
Lorevith: Absorb Elements, Burning Hands, Lightning Lure
Rictus: Protection from Good and Evil, Wither and Bloom (homebrewed to level 1)
The Spider (tarantula): Web

Known by dead wizards (might be loot on map)

Bobby Dazzler: Color Spray
Carmine: Create Bonfire
Helvetica: Minor Illusion
Whisper: Suggestion
Zephyr (green ranger): Gust of Wind

Unknown status

Dr Legume: Feather Fall

Speculation

Except for Time Stop, all confirmed spells so far are cantrips, first level, or second level. Only Rictus's Wither and Bloom has been confirmed to be homebrewed to a lower level. Accordingly I expect every other NPC encountered so far and any unretrieved crystals also have a spell below third level.

Blue ranger: Unknown status. This should be a water spell as the other elemental rangers were earth, wind, and fire. Shape Water is the top possibility. But I guess it's not out of the question it could be something like Fog Cloud, Misty Step, or Snowball Swarm.

Tremora (yellow ranger): Dead. Griffin said her element is earth because "she is able to get up this cliff face with astonishing speed." Two possibilites here: either this is her using her spell, or this is flavoring to explain how Tremora got up the cliff faster than Lorevith as a result of Lorevith's failed roll. My hunch is it's the latter and her spell is Earth Tremor to match her name.

The Spider and The Spider: Unknown status. Surely one of their spells is Spider Climb, right?

We know there was a crystal in the garden intended to defeat the plant guarding the gold key (the plant that killed Helgrammit). I would guess no NPCs got it (no indications so far that any NPCs have multiple spells), so it might still be retrievable. Obviously there's a lot of spells that could be used to kill a plant, but I'm guessing Griffin chose something more specific. Perhaps Blade Ward to defend against the slashing damage?